Metallic mold for concrete walls



G. W. BOLTON.

METALLIC MOLD FOR CONCRETE WALLS.

APPLICATION FILED JUNE 29, 1920.

1,874,717 I Patented Apr. 12, 1921 3 SHEETS-SHEET 1- OOOOO ooo oo 0 JTZQL 8.

, TTORNEY.

G. W. BOLTON.

METALLIC MOLD FOR CONCRETE WALLS.

APPLICATION FILED JUNEZQ, 1920- 1,374,71 7. Patented Apr. 12, 1921.

3 SHEETSSHEET 2- IN V EN TOR.

TORNEY G. W BOLTON.

METALLIC MOLD FORYCONCRETE WALLS.

APPLICATION FILED JUNE29, 1920.

1 Patented 'Apr. 12, 1921.

3 SHEETS-SHEET 3- INVENTOR.

TORNEY UNITED STATES.

GEORGE W. BOLTON,

onpALLAs, TEXAS.

METALLIC MOLD roR CONCRETE WALLS.

Specification of Letters Patent.

Patented Apr. 12, 1921.

Application filed June 29', 1920. Serial No. 392,802.

To all whom it may concern:

Be it known that I, GEORGE W. BOLTON, a citizen of the United States, residing at Dallas, in the county of Dallas and State of Texas, have invented certain new and useful Improvements in Metallic Molds for Concrete Walls, of which the following is a s )ecification.

his invention relates to improvements in building construction and has particular reference to the formation of plastic or concrete walls and the arrangement and construction of the molds or patterns for forming such walls.

As is well known in the construction of concrete walls for buildings or the like wooden forms are used wherein the concrete or plastic material is poured. These walls are also formed of previously molded concrete blocks assembled to form the wall. In the former instance considerable labor and time are consumed in building the wooden forms and proper lumber devoid of cracks, crevices, etc., must be selected; and in the latter instance while a plurality of cement or concrete blocks make a fairly good wall, no very satisfactory means have been discovered for fastening the'blocks together to make a perfectly tight and rigid wall construction.

It is the principal object of my invention to provide metal mold or form wherein the concrete may be poured to form a wall or walls, the forms being constructed. in suitable lengths and widths for easy and convenient handling and assembly and so arranged thatthey will fit together uniformly and neatly.

Another object lies in the unique and practical manner in which the corners of a building may be constructed, arrangement also being made for doors and windows to be placed at any designated point in the walls. 1

And finally, to provide a. means for constructing. a wall between buildings and where such walls may be constructed with a plurality of standard lengths of mold parts, having in mind the irregular distances between buildings.

Other advantages Wlll become apparent as the description of the invention progresses, reference being had to the accompanying drawings forming part hereof, in whichf Figure 1 is an elevational view of one of the members which are locked together to form the wall mold.

Fig. 2 is a cross-sectional view, taken on line 2-2, Fig. 1, illustrating a means for reinforcing the body of the member forming the wall mold.

F1gs. 3 and 4% are cross-sectional and side views respectively of a modified reinforcmg arrangement for the wall members, Fig. 1 being taken on line 4 -4:, Fig. 3.

F gs. 5 and 6- are enlarged side and cross sectional detail views, respectively, of a wall member showing means for further strengthening the same and illustrating a form of lock for the cross links, Fig. 6 taken on line 6-6, Fig. 5.

Figs. 7, 8, 9 and 10 are detailviews respectively of link or tie means for holding the completed wall members 1 in vertical parallel relationship in the wall mold.

F 1g. 8 is an elevational view. ofan angle piece for comers.- i

Fig. 11 is a vertical sectional view of a completed wall mold ready for the concrete filling.,the View showing the arrangement provided for the window opening. "Fig. 12 1S a-detail view of the window arrangement.

Fig. 18 is a view in side elevationof a portion of one side of a wall formed of the wall members showing the frame around which the concrete is poured for the window opening. 7

Fig. 1 1 is a partial vertical sectional view taken on line 1l14, Fig. '13.

Fig. 15 is a top or plan View of a corner viding for different widths or thicknesses of walls. i i

Fig. 16 is a side 'elevational view of a modified form of means for strengthening the inside angle of the wall mold. Fig. 17 is a detail plan view of the inner wall mold for corners.-

Fig. 18 is a detail view in elevationof an wall mold, illustrating the manner *of proarrangement for connecting the inner angle piece and the inner mold together.

Figs. 19 and 20 are fragmentary views of a concrete wall with a cross link of the form left in the wall and connected to a strip for forming an outside or inside air space. g I

F igs.'21 and 22represent a'member in sideand edge elevation for filling a spacein. a wall between buildings where the dis tance between such walls'is irregular.

Fi 23 is a partial cross sectional view of F ig. .5 taken on line 28-23 thereof, and

ig. 24- and 25 are side and cross-sectional views respectively of a portion of a wall mold illustrating the member in Figs. 21 and 22 in position.

Referring more in detail to the drawings and especially to Figs. 1 to 11, inclusive, the completed form or mold for making a concrete wall is composed of a plurality of detachable members 1 constructed of various lengths, such as two, four or six feet or of standard requirements, so that the length of any row of members comprising a wall would terminate evenly, even though inadvertently a member should be placed in a row out of its regular position. The members 1 have their edges bent at right angles to the body and form the sides 2--2 one side of which is further extended into a flange or lip 3. The members 1 are constructed preferably of galvanized sheet iron and have a longitudinally disposed reinforcing channel member 1 in the center of the member 1 and arranged over this channel 4 at suitable distances are the short cross pieces 5-5 which have the same formation as the channel member Each cross piece 5 and member 1 are perforated to receive bolts 66 for thus tightly securing the longitudinal reinforcing member 1 in position to thus strengthen the member 1. Considerable pressure can be brought to bear on the cross nieces 5-5 by advancing the nut on the be t 6 and the pressure may be further increased and means to prevent the ends of the cross pieces from bending provided in the modified arrangement comprising a sleeve 7, see Fig. 6, for suppor ingthe ends of the cross pieces.

Two members 1 -1 may thus be connected to a base 8 by means of bolts through one side 2 and the sides for a mold built up by placing the lower side 2 of another member 1 into the upper flange or lip 3 of the previous member 1. A cross link 9, see Fig. 8,-

and a modified form in Figs. 9 and 10, is then placed around the upper and lower sides 22 of the connected members 1, see Fig. 11, at each end of the link and a clamping pin 10 advanced against the cross link 5, securely holding the members in place, and reinforcing rods 11 and 12 also provided for further strengthening the mold form and concrete wall. The link shown in Fig. 8 is provided with an opening in its center to receive the cord 11. This link, as will be noted. by reference to Fig. 8 is formed of a flat piece of metal and, as shown in Fig. 11, has its ends passed between the sides of the members 11 and is bent downward over the side edge of the lower member and locked by the pin 10; while the link shown in Figs. 9 and 10 and in operative position in Fig. 11, is bent upward over both side edges of the members 1-1 and is then looked in position by the pin 10.

When an extra strong reinforcing member is desired the form shown in Fig. i is provided and is placed longitudinally in the channel of the member 1 with bolts traversing the center of reinforcing member and member 1. This reinforcing member is formed of the two parts 13 and 14 bolted to gether, the part 14 formed with a projection 1.5 and both parts curved slightly and having a slightly arcuate formation. Now when bolts 16 are placed through these reinforcing members and member 1 and ti ghtened, the curved exterior will straighten as will also the slightly curved or outwardly bent body of member 1, and when the curved portion is reduced the two parts are practically one piece and very strong.

In Figs. 11, 12 and 18 is illustrated means for forming window and door spaces at any designated place in the wall. This consists of a frame 17 which is set between the walls of th mold. In this case the ties 9 inside'the frame 17 are broken in the center and their inner ends 18 upturned as shown in Fig. 1 1, and a bolt provided for tightening the frame in between the mold walls.

Referring now to Fig. 15, the mold forms are bent at right angles to form outside corner and are strengthenedby means of the angle member 19 which may be length ened into a form 20 for convenience as depicted in Fig. 16. These corner members are perforated as at 2121 to receive bolts to fasten to members 1-1 from each side of the mold. In forming the inside corner for various widths of wallsee dotted lines in Fig. 15a corner member 22 is provided similar b0 the one shown at 20, Fig. 16,and which has a greater number of apertures or perforations 23 so that as the inside corner member 22 is shifted to meet wall width the holes will register properly with the bolts 24. The corner members 19 and 22 are notched as at 25 to allow for passage of the cross links 9.

In some cases where walls are constructed between buildings the distance between such building walls may not be such that the standard lengths of members 1-1 will meet without cutting, and to obviate this and save time and labor, I have provided an emergency joint 26 shown at Figs. 21 and 22 and illustrated in position in Fig. 24. This emergency joint 26 has one edge 2 and a lip 3 with the usual perforations by means of which the channel member 4 and cross pieces 5 may be placed thereon, the member l adaptedto be slipped over the adjacent member e in the wall members 1-1.

Reference being bad to Figs. 19 and 20, it will be noted that there is provided a means for forming an outside or inside air space for the completed wall, This is done by placing strips 27-27, in vertical and horizontal position, against the wall after the molds are removed, and bending the links 9-9 over and nailing to the strips 272'7. Beaver board or such like material may then be placed over the inside strips, or plastering strips may-be tacked to the strips and the plaster forming the innermost wall. Similar arrangement may be made on the outside strips. 7

Having thus described the nature and objects of my invention, what I claim as new and desire to secure by Letters Patent is 1. A metallic mold for concrete and plastic walls, said mold consisting of a plurality of oblong plates with their sides bent at right angles to the body thereof and form- 7 ing a channel, similarly constructed, reinforcing members detachably connected to said plates longitudinally and vertically thereof, and means for connecting the plates together laterally and endwise and sustaining them in spaced parallel relationship to form a mold for a Wall. I

2. A metallic mold for concrete and plastic walls, said mold consisting of a plurality of oblong plates with their sides bent at right angles to the body thereof and forming a channel, similarly constructed reinforcing members detachably connected to said plates longitudinally and vertically thereof, and cross links between the wall molds and fastened to the'right angled sides thereof to sustain the molds in parallel relationship, said links providing a strengthening means for the concrete wall and a fastening means for outside strips when the molds are removed, and means for providing window and door spaces at designated points in the wall.

3. A metallic mold for concrete and plastic walls, said mold consisting of a plurality of oblong plates with their sides bent at right anglesto the body thereof and forming a channel, similarly constructed reinforcing members detachably connected to said plates longitudinally and vertically thereof, and cross links between the wall molds, said links having their ends bent over the right angled side edges of the oblong channel plates to sustain the walls of the mold in parallel position, and a clamping pin slidably arranged on the reinforcing members and adapted to be advanced against the bent-over ends of the links to hold the links in position, said links and clamping pins providing a strengthening means for the concrete wall and a fastening means. for outside strips when the molds are removed. I

4:. A. metallic mold for forming concrete and plastic walls comprising oblong plates with their sides bent at right angles to the body thereof, and forming a channel, similarly constructed reinforcing members'detachably connected to said plates longitudinally and vertically thereof, cross links between the molds, clamping pins to secure the links in position, right angled corner plate members provided with circular perforations for connection with the adjacent wall molds and notches in the edges of the right angled plates to receive the sides of said links.

5. A metallic mold for forming concrete and plastic walls comprising oblong plates with their sides bent at right angles to the body thereof, and forming a channel, similarly constructed reinforcing members detachably connected to said plates longitudinally and vertically thereof, cross links between the molds, clamping pins to secure the links in position, right angled corner plate members provided with circular perforations for connection with the adjacent wall molds and notches in the edges of the corner plate members for the sides of the links, and an emergency joint comprising a flat plate with a flange on its upper side and a lip on the flange midway of the ends of the plate.

In testimony whereof I have signed my name to this specification.

' GEORGE l/V. BOLTON. 

